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JP2008027650A - Lamp tool for vehicle - Google Patents

Lamp tool for vehicle Download PDF

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Publication number
JP2008027650A
JP2008027650A JP2006196709A JP2006196709A JP2008027650A JP 2008027650 A JP2008027650 A JP 2008027650A JP 2006196709 A JP2006196709 A JP 2006196709A JP 2006196709 A JP2006196709 A JP 2006196709A JP 2008027650 A JP2008027650 A JP 2008027650A
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Prior art keywords
lens
projection lens
light
vehicle
lamp
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JP2006196709A
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Japanese (ja)
Inventor
Michio Tsukamoto
三千男 塚本
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Koito Manufacturing Co Ltd
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Koito Manufacturing Co Ltd
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Priority to JP2006196709A priority Critical patent/JP2008027650A/en
Publication of JP2008027650A publication Critical patent/JP2008027650A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
    • F21S41/635—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by moving refractors, filters or transparent cover plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/285—Refractors, transparent cover plates, light guides or filters not provided in groups F21S41/24 - F21S41/2805
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To enable to generate condensed light and diffused light with the same lamp tool. <P>SOLUTION: The lamp tool is provided with a light source 10, a projection lens 40 arranged in front of the lamp tool of the light source, a diffusion lens 50 arranged in front of the projection lens, and a driving device 60 driving the diffusion lens. The driving lens 60 has the diffusion lens 50 make a rotation movement so as to form a rotation center at the rear of the projection lens 40, and makes the diffusion lens 50 free to move between the front position of the projection lens 40 and an upper position of the projection lens 40. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、車輌用灯具に関する。   The present invention relates to a vehicular lamp.

車輌用灯具（前照灯）では、車外の気象条件や運転状況に応じて、車両手前に拡散光を照射したい状況や、部分的に集光を強くして照射したい状況など、光のさまざまな照射状況が要求される。そのため、従来の車輌用灯具では、用途の異なる複数の前照灯を組み合わせたユニットで、各種の配光パターンを独立して生成していた。   In vehicle lamps (headlights), depending on the weather conditions and driving conditions outside the vehicle, there are various light conditions such as the situation where you want to irradiate diffused light in front of the vehicle, the situation where you want to irradiate partially concentrated light, etc. Irradiation status is required. Therefore, in the conventional vehicular lamp, various light distribution patterns are independently generated by a unit in which a plurality of headlamps having different uses are combined.

しかしながら、従来の車輌用灯具では、拡散光を得たい場合には拡散光用の前照灯（例えば、フォグランプなど）を搭載（または点灯）する必要があり、１つの前照灯で通常の集光の強い光と拡散光とを区別して生成することはできなかった。   However, in a conventional vehicle lamp, when it is desired to obtain diffused light, it is necessary to mount (or turn on) a diffused light headlamp (for example, a fog lamp). It was impossible to distinguish between strong light and diffused light.

本発明は、集光と拡散光を同一の灯具で生成可能な車輌用灯具を提供することを目的とする。   An object of this invention is to provide the vehicle lamp which can produce | generate condensing and diffused light with the same lamp.

本発明は、発光素子と、前記発光素子の灯具前方に配置された投影レンズと、前記投影レンズの前方に配置された拡散レンズと、前記拡散レンズを駆動する駆動装置とを備え、前記駆動装置は、前記投影レンズの後方に回転中心を形成するように前記拡散レンズを回転運動させ、前記拡散レンズを、前記投影レンズの前方位置と前記投影レンズの上方位置との間で移動可能とするものである。この構成によれば、拡散レンズを投影レンズの前方位置と投影レンズの上方位置との間で移動可能とすることにより、集光と拡散光を同一の灯具で生成することができる。   The present invention includes: a light emitting element; a projection lens disposed in front of a lamp of the light emitting element; a diffusion lens disposed in front of the projection lens; and a driving device that drives the diffusion lens. Rotates the diffusion lens so as to form a rotation center behind the projection lens, and allows the diffusion lens to move between a front position of the projection lens and an upper position of the projection lens. It is. According to this configuration, the diffused lens can be moved between the front position of the projection lens and the upper position of the projection lens, so that the condensed light and the diffused light can be generated by the same lamp.

本発明において、前記拡散レンズは、前記投影レンズ前面の曲率に沿って湾曲した円柱状曲面を有し、且つ前記円柱状曲面の長手方向が鉛直方向となるように配置されている。この構成によれば、適切な拡散光を生成する拡散レンズを省スペースで配置、回動させることができる。   In the present invention, the diffusing lens has a cylindrical curved surface curved along the curvature of the front surface of the projection lens, and is arranged so that the longitudinal direction of the cylindrical curved surface is a vertical direction. According to this configuration, the diffusing lens that generates appropriate diffused light can be arranged and rotated in a space-saving manner.

本発明において、前記円柱状曲面は、長手方向の上端に関して曲率を有するものである。この構成によれば、適切な拡散光を生成する拡散レンズを省スペースで配置、回動させることができる。   In the present invention, the cylindrical curved surface has a curvature with respect to the upper end in the longitudinal direction. According to this configuration, the diffusing lens that generates appropriate diffused light can be arranged and rotated in a space-saving manner.

本発明において、前記拡散レンズは、前記投影レンズ前面の曲率に沿って湾曲した円柱状曲面を有し、且つ前記円柱状曲面の長手方向が水平方向となるように配置されている。この構成によれば、適切な拡散光を生成する拡散レンズを省スペースで配置、回動させることができる。   In the present invention, the diffusing lens has a cylindrical curved surface curved along the curvature of the front surface of the projection lens, and is arranged so that the longitudinal direction of the cylindrical curved surface is a horizontal direction. According to this configuration, the diffusing lens that generates appropriate diffused light can be arranged and rotated in a space-saving manner.

本発明において、前記円柱状曲面の曲率中心は、前記回転中心と一致する。この構成によれば、適切な拡散光を生成する拡散レンズを省スペースで配置、回動させることができる。   In the present invention, the center of curvature of the cylindrical curved surface coincides with the center of rotation. According to this configuration, the diffusing lens that generates appropriate diffused light can be arranged and rotated in a space-saving manner.

本発明によれば、拡散レンズを投影レンズの前方位置と投影レンズの上方位置との間で移動可能とすることにより、集光と拡散光を同一の灯具で生成することができ、車外の気象条件や運転状況に応じて切り替えることができる。   According to the present invention, the diffused lens can be moved between the front position of the projection lens and the upper position of the projection lens, so that the condensed light and the diffused light can be generated by the same lamp, and the weather outside the vehicle. It can be switched according to conditions and driving conditions.

図１は、本発明の実施の形態１における車輌用灯具の構成を示す模式図である。車輌用灯具ユニット１００は、光源１０と、光源１０からの光を灯具前方へ集光反射するリフレクタ２０と、光源１０の灯具前方に配置されたシェード３０と、シェードの灯具前方に配置された投影レンズ４０と、投影レンズ４０の前方に配置された拡散レンズ５０と、拡散レンズ５０を投影レンズ４０の前方から上方へ移動させるための駆動装置６０とを備えている。   FIG. 1 is a schematic diagram showing a configuration of a vehicular lamp according to the first embodiment of the present invention. The vehicular lamp unit 100 includes a light source 10, a reflector 20 that condenses and reflects light from the light source 10 in front of the lamp, a shade 30 that is disposed in front of the lamp of the light source 10, and a projection that is disposed in front of the lamp of the shade. The lens 40, a diffusion lens 50 disposed in front of the projection lens 40, and a driving device 60 for moving the diffusion lens 50 upward from the front of the projection lens 40 are provided.

光源１０は、ＬＥＤなどの発光素子で形成される。リフレクタ２０は、光源１０に対して上方側に設けられた、光軸を中心軸とする略楕円球面状に形成された反射面２１を有する。反射面２１は、後方焦点付近に配置された光源１０からの光を前方焦点へ向けて光軸寄りに集光反射させて前方焦点に収束させる。シェード３０は、光源１０やリフレクタ２０を固定するとともに、光制御部材としての機能を担う。投影レンズ４０は、光源１０またはリフレクタ２０からの光を収束させて集光を生成する。   The light source 10 is formed of a light emitting element such as an LED. The reflector 20 has a reflection surface 21 provided on the upper side with respect to the light source 10 and formed in a substantially elliptical spherical shape with the optical axis as the central axis. The reflecting surface 21 converges and reflects the light from the light source 10 disposed in the vicinity of the rear focal point toward the front focal point near the optical axis and converges it to the front focal point. The shade 30 fixes the light source 10 and the reflector 20 and functions as a light control member. The projection lens 40 converges light from the light source 10 or the reflector 20 to generate a condensed light.

拡散レンズ５０は、進入する光を広範囲に分散させて拡散光を生成する。本実施の形態の拡散レンズ５０は、図１に示すように、投影レンズ４０前面の曲率に沿って湾曲した円柱状曲面を有し、且つ円柱状曲面の長手方向が水平方向となるように配置されている。拡散レンズ５０は、図２に示すような波型の凹凸断面形状を内側に有する。また、拡散レンズ５０は、その曲率中心５５を回転中心として回動可能となるように、脚部５４を有する拡散レンズ固定具５３に固定されている。   The diffusion lens 50 generates diffused light by dispersing incoming light over a wide range. As shown in FIG. 1, the diffusing lens 50 of the present embodiment has a cylindrical curved surface curved along the curvature of the front surface of the projection lens 40, and is arranged so that the longitudinal direction of the cylindrical curved surface is a horizontal direction. Has been. The diffusing lens 50 has a corrugated sectional shape as shown in FIG. The diffusing lens 50 is fixed to a diffusing lens fixture 53 having legs 54 so that the diffusing lens 50 can be rotated with the center of curvature 55 as the center of rotation.

駆動装置６０は、レバー６１の前後運動が可能なアクチュエータで構成される。レバー６１が前方に移動すると、拡散レンズ固定具５３の脚部５４が押され、拡散レンズ固定具５３が支点５５を中心として回転するため、投影レンズ４０の前方にある拡散レンズ５０を投影レンズ４０の上方へ移動させることができる（図１（ｂ）参照）。拡散レンズ５０が投影レンズ４０の前方に位置している時は、灯具前方へ拡散光を照射することができ、拡散レンズ５０が投影レンズ４０の上方に位置している時には、灯具前方へ集光を照射することができる。   The driving device 60 is configured by an actuator that can move the lever 61 back and forth. When the lever 61 moves forward, the leg portion 54 of the diffusing lens fixture 53 is pushed, and the diffusing lens fixture 53 rotates about the fulcrum 55, so that the diffusing lens 50 in front of the projection lens 40 is moved to the projection lens 40. (See FIG. 1B). When the diffusing lens 50 is positioned in front of the projection lens 40, the diffused light can be irradiated in front of the lamp, and when the diffusing lens 50 is positioned above the projection lens 40, the light is condensed in front of the lamp. Can be irradiated.

図３および図４は、本発明の実施の形態１における車輌用灯具ユニット１００の配光パターンを示す模式図である。図３に示すように、投影レンズ４０の前方に拡散レンズ５０がある場合は広範囲に渡って拡散光が照射され、図４に示すように、投影レンズ４０の前方に拡散レンズ５０がない場合は前方の狭い範囲に集光が照射される。   3 and 4 are schematic diagrams showing a light distribution pattern of the vehicular lamp unit 100 according to Embodiment 1 of the present invention. As shown in FIG. 3, when there is a diffusing lens 50 in front of the projection lens 40, the diffused light is irradiated over a wide range, and when there is no diffusing lens 50 in front of the projection lens 40 as shown in FIG. Condensed light is irradiated to a narrow area in front.

以上のように、拡散レンズ５０を、投影レンズ４０前方の光路上に配置したり、退避させたりすることができるので、同一の灯具で集光と拡散光を用途に応じて生成することができる。例えば、車両の低速走行時や交差点での右左折時には拡散光を、高速走行時や雨天走行時には集光を生成するなど、車外の気象条件や運転状況に応じて配光パターンを変化させるようにすれば、運転者の視認性を向上させることができる。   As described above, since the diffusing lens 50 can be disposed on the optical path in front of the projection lens 40 or retracted, it is possible to generate condensed light and diffused light with the same lamp according to applications. . For example, the light distribution pattern changes according to the weather conditions and driving conditions outside the vehicle, such as generating diffused light when the vehicle is traveling at low speeds or turning left and right at intersections, and condensing when traveling at high speeds or in rainy weather. Then, the visibility of the driver can be improved.

また、拡散レンズ５０は、投影レンズ４０の曲率に沿うような回転運動で移動するため、拡散レンズの収納空間が少なく、省スペース型の灯具とすることができる。   Further, since the diffusing lens 50 is moved by a rotational movement that follows the curvature of the projection lens 40, the diffusing lens has a small storage space and can be a space-saving lamp.

図５は、本発明の実施の形態２における車輌用灯具の構成を示す模式図である。車輌用灯具ユニット１１０は、実施の形態１と同様に、光源１０と、リフレクタ２０と、シェード３０と、投影レンズ４０と、駆動装置６０（説明の便宜上、図示省略）とを備えているが、拡散レンズ５１の形状が実施の形態１と異なる。   FIG. 5 is a schematic diagram showing the configuration of the vehicular lamp according to the second embodiment of the present invention. The vehicle lamp unit 110 includes a light source 10, a reflector 20, a shade 30, a projection lens 40, and a drive device 60 (not shown for convenience of explanation), as in the first embodiment. The shape of the diffusing lens 51 is different from that of the first embodiment.

実施の形態２の拡散レンズ５１は、図５に示すように、投影レンズ４０前面の曲率に沿って湾曲した円柱状曲面を有し、且つ円柱状曲面の長手方向が鉛直方向となるように配置されている。また、拡散レンズ５１は拡散レンズ固定具５３に固定され、拡散レンズ固定具５３は、支点５５を回転中心として回動可能となっている。   As shown in FIG. 5, the diffusing lens 51 of the second embodiment has a cylindrical curved surface that is curved along the curvature of the front surface of the projection lens 40, and is arranged so that the longitudinal direction of the cylindrical curved surface is the vertical direction. Has been. Further, the diffusion lens 51 is fixed to a diffusion lens fixture 53, and the diffusion lens fixture 53 is rotatable about a fulcrum 55 as a rotation center.

実施の形態１で説明した駆動方法により、拡散レンズ固定具５３が支点５５を中心として回転すると、投影レンズ４０の前方にある拡散レンズ５１を投影レンズ４０の上方へ移動させることができる（図５（ｂ）参照）。拡散レンズ５１が投影レンズ４０の前方に位置している時は、灯具前方へ拡散光を照射することができ、拡散レンズ５１が投影レンズ４０の上方に位置している時には、灯具前方へ集光を照射することができる。   When the diffusion lens fixture 53 rotates around the fulcrum 55 by the driving method described in the first embodiment, the diffusion lens 51 in front of the projection lens 40 can be moved above the projection lens 40 (FIG. 5). (See (b)). When the diffusing lens 51 is positioned in front of the projection lens 40, the diffused light can be irradiated in front of the lamp, and when the diffusing lens 51 is positioned above the projection lens 40, the light is condensed in front of the lamp. Can be irradiated.

図６および図７は、本発明の実施の形態２における車輌用灯具ユニット１１０の配光パターンを示す模式図である。図６に示すように、投影レンズ４０の前方に拡散レンズ５１がある場合は広範囲に渡って拡散光が照射され、図７に示すように、投影レンズ４０の前方に拡散レンズ５１がない場合は前方の狭い範囲に集光が照射される。   6 and 7 are schematic diagrams showing a light distribution pattern of the vehicular lamp unit 110 according to the second embodiment of the present invention. As shown in FIG. 6, when there is a diffusing lens 51 in front of the projection lens 40, diffused light is irradiated over a wide range, and as shown in FIG. 7, when there is no diffusing lens 51 in front of the projection lens 40. Condensed light is irradiated to a narrow area in front.

以上のように、拡散レンズ５１を、投影レンズ４０前方の光路上に配置したり、退避させたりすることができるので、同一の灯具で集光と拡散光を用途に応じて生成することができる。例えば、車両の低速走行時や交差点での右左折時には拡散光を、高速走行時や雨天走行時には集光を生成するなど、車外の気象条件や運転状況に応じて配光パターンを変化させるようにすれば、運転者の視認性を向上させることができる。   As described above, since the diffusing lens 51 can be disposed on the optical path in front of the projection lens 40 or retracted, it is possible to generate condensed light and diffused light with the same lamp according to the application. . For example, the light distribution pattern changes according to the weather conditions and driving conditions outside the vehicle, such as generating diffused light when the vehicle is traveling at low speeds or turning left and right at intersections, and condensing when traveling at high speeds or in rainy weather. Then, the visibility of the driver can be improved.

図８は、本発明の実施の形態３における車輌用灯具の構成を示す模式図である。車輌用灯具ユニット１２０は、実施の形態２と同様に、光源１０と、リフレクタ２０と、シェード３０と、投影レンズ４０と、駆動装置６０（説明の便宜上、図示省略）とを備えているが、拡散レンズ５２の形状が実施の形態２と異なる。   FIG. 8 is a schematic diagram showing the configuration of the vehicular lamp according to the third embodiment of the present invention. The vehicle lamp unit 120 includes a light source 10, a reflector 20, a shade 30, a projection lens 40, and a drive device 60 (not shown for convenience of explanation), as in the second embodiment. The shape of the diffusing lens 52 is different from that of the second embodiment.

実施の形態３の拡散レンズ５２は、図８に示すように、投影レンズ４０前面の曲率に沿って湾曲した円柱状曲面を有し、且つ実施の形態２と同じように円柱状曲面の長手方向が鉛直方向となるように配置されている。但し、長手方向の上端に関して曲率を有する点が実施の形態２のそれとは異なる。また、拡散レンズ５２は拡散レンズ固定具５３に固定され、拡散レンズ固定具５３は、支点５５を回転中心として回動可能となっている。   As shown in FIG. 8, the diffusing lens 52 of the third embodiment has a cylindrical curved surface that is curved along the curvature of the front surface of the projection lens 40, and the longitudinal direction of the cylindrical curved surface is the same as that of the second embodiment. Are arranged in the vertical direction. However, the point having a curvature with respect to the upper end in the longitudinal direction is different from that of the second embodiment. Further, the diffusion lens 52 is fixed to a diffusion lens fixture 53, and the diffusion lens fixture 53 is rotatable about a fulcrum 55 as a rotation center.

実施の形態１で説明した駆動方法により、拡散レンズ固定具５３が支点５５を中心として回転すると、投影レンズ４０の前方にある拡散レンズ５２を投影レンズ４０の上方へ移動させることができる（図８（ｂ）参照）。拡散レンズ５２が投影レンズ４０の前方に位置している時は、灯具前方へ拡散光を照射することができ、拡散レンズ５２が投影レンズ４０の上方に位置している時には、灯具前方へ集光を照射することができる。   When the diffusing lens fixture 53 rotates around the fulcrum 55 by the driving method described in the first embodiment, the diffusing lens 52 in front of the projection lens 40 can be moved above the projection lens 40 (FIG. 8). (See (b)). When the diffusing lens 52 is positioned in front of the projection lens 40, the diffused light can be irradiated in front of the lamp, and when the diffusing lens 52 is positioned above the projection lens 40, the light is condensed in front of the lamp. Can be irradiated.

図９および図１０は、本発明の実施の形態３における車輌用灯具ユニット１２０の配光パターンを示す模式図である。図９に示すように、投影レンズ４０の前方に拡散レンズ５２がある場合は広範囲に渡って拡散光が照射され、図１０に示すように、投影レンズ４０の前方に拡散レンズ５２がない場合は前方の狭い範囲に集光が照射される。   9 and 10 are schematic diagrams showing a light distribution pattern of the vehicular lamp unit 120 according to the third embodiment of the present invention. As shown in FIG. 9, when there is a diffusing lens 52 in front of the projection lens 40, diffused light is irradiated over a wide range, and when there is no diffusing lens 52 in front of the projection lens 40 as shown in FIG. Condensed light is irradiated to a narrow area in front.

以上のように、拡散レンズ５２を、投影レンズ４０前方の光路上に配置したり、退避させたりすることができるので、同一の灯具で集光と拡散光を用途に応じて生成することができる。例えば、車両の低速走行時や交差点での右左折時には拡散光を、高速走行時や雨天走行時には集光を生成するなど、車外の気象条件や運転状況に応じて配光パターンを変化させるようにすれば、運転者の視認性を向上させることができる。   As described above, since the diffusing lens 52 can be disposed on the optical path in front of the projection lens 40 or retracted, it is possible to generate condensed light and diffused light with the same lamp according to applications. . For example, the light distribution pattern changes according to the weather conditions and driving conditions outside the vehicle, such as generating diffused light when the vehicle is traveling at low speeds or turning left and right at intersections, and condensing when traveling at high speeds or in rainy weather. Then, the visibility of the driver can be improved.

尚、上記の実施の形態では、駆動部６０としてアクチュエータを用いた例について説明したが、これに限定されるものではなく、モーターなど、拡散レンズの回動を可能とするものであればどのようなものを用いてもかまわない。   In the above-described embodiment, an example in which an actuator is used as the driving unit 60 has been described. However, the present invention is not limited to this example, and any motor or other device that can rotate the diffusion lens can be used. You can use anything.

また、上記の実施の形態では、拡散レンズが投影レンズを完全に覆うように配置された状態と、拡散レンズが完全に退避された状態のみについて説明したが、拡散レンズを回動させる途中、即ち、拡散レンズが投影レンズを部分的に覆うような状態で、集光と拡散光が混在する配光パターンを生成するようにしてもよい。本発明の車輌用灯具では、拡散レンズの回動時に配光パターンは徐々に変化し、車両の運転者の視覚が追随できないような照射状態の急激な変化がないので、運転中に拡散レンズの回動を行っても不安全な状態が生じる恐れがない。また、車外の明るさなど各種条件を判断して自動的に拡散レンズの回動角度が設定されるようにしてもよい。   In the above embodiment, only the state where the diffusing lens is disposed so as to completely cover the projection lens and the state where the diffusing lens is completely retracted have been described. The light distribution pattern in which the condensed light and the diffused light are mixed may be generated in a state where the diffusion lens partially covers the projection lens. In the vehicular lamp of the present invention, the light distribution pattern gradually changes when the diffusion lens is rotated, and there is no sudden change in the irradiation state that cannot be followed by the driver of the vehicle. There is no risk of unsafe conditions even if the rotation is performed. Further, the rotation angle of the diffusion lens may be automatically set by judging various conditions such as the brightness outside the vehicle.

本発明の実施の形態１における車輌用灯具の構成を示す模式図Schematic diagram showing the configuration of the vehicular lamp in the first embodiment of the present invention. 本発明の実施の形態１における車輌用灯具の、拡散レンズの断面形状を示す模式図The schematic diagram which shows the cross-sectional shape of a diffusion lens of the vehicle lamp in Embodiment 1 of this invention. 本発明の実施の形態１における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズあり）Schematic diagram showing a light distribution pattern of a vehicle lamp unit according to Embodiment 1 of the present invention (with a diffusing lens) 本発明の実施の形態１における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズなし）Schematic diagram showing the light distribution pattern of the vehicular lamp unit according to Embodiment 1 of the present invention (without a diffusing lens) 本発明の実施の形態２における車輌用灯具の構成を示す模式図Schematic diagram showing the configuration of the vehicular lamp according to the second embodiment of the present invention. 本発明の実施の形態２における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズあり）Schematic diagram showing a light distribution pattern of a vehicle lamp unit according to Embodiment 2 of the present invention (with a diffusing lens) 本発明の実施の形態２における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズなし）Schematic diagram showing a light distribution pattern of a vehicle lamp unit according to Embodiment 2 of the present invention (without a diffusing lens) 本発明の実施の形態３における車輌用灯具の構成を示す模式図Schematic diagram showing the configuration of the vehicular lamp according to the third embodiment of the present invention. 本発明の実施の形態３における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズあり）Schematic diagram showing a light distribution pattern of a vehicular lamp unit according to Embodiment 3 of the present invention (with a diffusing lens) 本発明の実施の形態３における車輌用灯具ユニットの配光パターンを示す模式図（拡散レンズなし）Schematic diagram showing a light distribution pattern of a vehicle lamp unit according to Embodiment 3 of the present invention (without a diffusing lens)

符号の説明Explanation of symbols

１０ 光源
２０ リフレクタ
３０ シェード
４０ 投影レンズ
５０、５１、５２ 拡散レンズ
５３ 拡散レンズ固定具
５４ 脚部
６０ 駆動装置
６１ レバー DESCRIPTION OF SYMBOLS 10 Light source 20 Reflector 30 Shade 40 Projection lens 50, 51, 52 Diffusion lens 53 Diffusion lens fixture 54 Leg part 60 Drive apparatus 61 Lever

Claims (5)

発光素子と、前記発光素子の灯具前方に配置された投影レンズと、前記投影レンズの前方に配置された拡散レンズと、前記拡散レンズを駆動する駆動装置とを備え、
前記駆動装置は、前記投影レンズの後方に回転中心を形成するように前記拡散レンズを回転運動させ、前記拡散レンズを、前記投影レンズの前方位置と前記投影レンズの上方位置との間で移動可能とする車輌用灯具。 A light emitting element, a projection lens disposed in front of the lamp of the light emitting element, a diffusion lens disposed in front of the projection lens, and a driving device for driving the diffusion lens,
The driving device rotates the diffusion lens so as to form a rotation center behind the projection lens, and the diffusion lens can be moved between a front position of the projection lens and an upper position of the projection lens. A vehicle lamp. 前記拡散レンズは、前記投影レンズ前面の曲率に沿って湾曲した円柱状曲面を有し、且つ前記円柱状曲面の長手方向が鉛直方向となるように配置されている請求項１に記載の車輌用灯具。 2. The vehicle according to claim 1, wherein the diffusion lens has a cylindrical curved surface that is curved along a curvature of the front surface of the projection lens, and is arranged such that a longitudinal direction of the cylindrical curved surface is a vertical direction. Light fixture. 前記円柱状曲面は、長手方向の上端に関して曲率を有するものである請求項２に記載の車輌用灯具。 The vehicular lamp according to claim 2, wherein the cylindrical curved surface has a curvature with respect to an upper end in a longitudinal direction. 前記拡散レンズは、前記投影レンズ前面の曲率に沿って湾曲した円柱状曲面を有し、且つ前記円柱状曲面の長手方向が水平方向となるように配置されている請求項１に記載の車輌用灯具。 2. The vehicle according to claim 1, wherein the diffusion lens has a cylindrical curved surface that is curved along the curvature of the front surface of the projection lens, and is arranged such that a longitudinal direction of the cylindrical curved surface is a horizontal direction. Light fixture. 前記円柱状曲面の曲率中心は、前記回転中心と一致する請求項４に記載の車輌用灯具。 The vehicular lamp according to claim 4, wherein a center of curvature of the cylindrical curved surface coincides with the rotation center.
JP2006196709A 2006-07-19 2006-07-19 Lamp tool for vehicle Pending JP2008027650A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
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JP2008277130A (en) * 2007-04-27 2008-11-13 Ichikoh Ind Ltd Vehicle lighting
WO2010024091A1 (en) 2008-08-26 2010-03-04 国立大学法人九州大学 Evaluation/screening method for diseases associated with d-amino acid utilizing dao1-/- mouse
CN102434833A (en) * 2010-09-06 2012-05-02 株式会社小糸制作所 Vehicle lamp
US8393768B2 (en) 2009-10-01 2013-03-12 Hyundai Motor Company Side-illuminating projection lamp and headlight having the same
WO2015087985A1 (en) 2013-12-11 2015-06-18 株式会社資生堂 Marker for early diagnosis of kidney failure
KR101542967B1 (en) 2013-12-26 2015-08-07 현대자동차 주식회사 Head lamp for vehicle
CN112781005A (en) * 2019-11-04 2021-05-11 现代自动车株式会社 Pattern skin lighting device for vehicle

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008277130A (en) * 2007-04-27 2008-11-13 Ichikoh Ind Ltd Vehicle lighting
WO2010024091A1 (en) 2008-08-26 2010-03-04 国立大学法人九州大学 Evaluation/screening method for diseases associated with d-amino acid utilizing dao1-/- mouse
US8393768B2 (en) 2009-10-01 2013-03-12 Hyundai Motor Company Side-illuminating projection lamp and headlight having the same
CN102434833A (en) * 2010-09-06 2012-05-02 株式会社小糸制作所 Vehicle lamp
EP3842806A1 (en) 2013-12-11 2021-06-30 Kagami Inc. Marker for early diagnosis of kidney failure
WO2015087985A1 (en) 2013-12-11 2015-06-18 株式会社資生堂 Marker for early diagnosis of kidney failure
KR101542967B1 (en) 2013-12-26 2015-08-07 현대자동차 주식회사 Head lamp for vehicle
US9638385B2 (en) 2013-12-26 2017-05-02 Hyundai Motor Company Head lamp in vehicle
CN112781005A (en) * 2019-11-04 2021-05-11 现代自动车株式会社 Pattern skin lighting device for vehicle
KR20210053733A (en) * 2019-11-04 2021-05-12 현대자동차주식회사 Pattern skin lighting device of vehicle
KR102299343B1 (en) * 2019-11-04 2021-09-08 현대자동차주식회사 Pattern skin lighting device of vehicle
US11292384B2 (en) 2019-11-04 2022-04-05 Hyundai Motor Company Pattern skin lighting device of vehicle
CN112781005B (en) * 2019-11-04 2024-04-05 现代自动车株式会社 Pattern skin lighting device for vehicle

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